I mean some one who won a wabba competition and became pro, is that an ifbb pro or wabba pro, and what the difference? Thanks.

It's a different federation that holds no affiliation with the IFBB. If you wanted to become an IFBB pro, you'd still have to qualify through the corresponding amateur affiliate. Such as, NPC (USA), CBBF (Canada), UKBFF (UK), or IFBB amateur (internationally).

"The World Amateur Body Building Association (WABBA) is a bodybuilding organisation founded in 1976 by the legendary French bodybuilder Serge Nubret. The association joined the National Amateur Bodybuilders Association (NABBA) based in England in 1977, but unjoined again in 1983.